Many people are familiar with our native Hibiscus moscheutos. It is the source of many of the cultivars sold as Hardy Hibiscus, but there are many other species that grow here in the United States. Here is a look at the species that grow wild in the Continental United States.

A common wildflower/weed in central and northern Illinois. Introduced from Europe as an ornamental. Each bloom (white/pale yellow w/ a purple base) lasts but a few hours.
Self-seeds prolifically; seeds can remain viable in the soil for years. Plant is pollinated by bumble bees primarily. Caterpillars of the Checkered Skipper, Grey Hairstreak, and Painted Lady find them quite munchable. Common Illinois habitats are croplands, field edges, roadsides, railroad right of ways, gardens, vacant sites, and construction sites. Plant has an interesting calyx.